jtamika31
19.02.2021 •
Mathematics
An 8ft length of 4 inch wide crown molding costs $15. How much will it cost to buy 72 ft of crown molding?
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Ответ:
$70
EXPLANATION
Step-by-step explanation:
Given, for a 4 inch wide crown molding:
8 ft length costs $14
Cost of 40 ft length = ?
8 ft length costs $14
To find the cost of 1 ft length,
Divide through by 8
8ft/8 length costs $14/8
1ft costs $1.75
Now, to find the cost of 40 ft length
1ft costs $1.75
1 ft x 40 would cost $1.75
40 ft would cost $70
Therefore, it would cost $70 to buy 40 ft of crown molding
Ответ:
8.) The coordinates of the given square are O(0, 0), S(0, a), T(a, a), W(a, 0)
9.) The coordinates of the given square are S(-b/2, -b/2), T(-b/2, b/2), W(b/2, b/2), Z(b/2, -b/2)